Feed is at the centre and a balun is present to isolate the transmission line and provide some type of impedance matching. It's quite a lightweight antenna at 4.5 kg -the construction is very good quality and all the components first rate. I do recommend guying the antenna however. There is a lower noise floor with the I-Pro-Home.

For operating on 40m and 80m HF-Bands i use Limited Space High Performance Antennasfrom Alpha Delta